82773178329 has 8 divisors (see below), whose sum is σ = 111761253760. Its totient is φ = 54483610896.

The previous prime is 82773178303. The next prime is 82773178331. The reversal of 82773178329 is 92387137728.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82773178329 - 2⁸ = 82773178073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82773178379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174626722 + ... + 174627195.

It is an arithmetic number, because the mean of its divisors is an integer number (13970156720).

Almost surely, 2^82773178329 is an apocalyptic number.

It is an amenable number.

82773178329 is a deficient number, since it is larger than the sum of its proper divisors (28988075431).

82773178329 is a wasteful number, since it uses less digits than its factorization.

82773178329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349253999.

The product of its digits is 7112448, while the sum is 57.

The spelling of 82773178329 in words is "eighty-two billion, seven hundred seventy-three million, one hundred seventy-eight thousand, three hundred twenty-nine".